From 4f404712c8ebcff78a5702cf0192568c7b9ee226 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Tue, 02 Jul 2013 15:13:04 -0400
Subject: [PATCH] Restored original GO launcher class
---
src/main/java/com/gitblit/Launcher.java | 148 +++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 148 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/gitblit/Launcher.java b/src/main/java/com/gitblit/Launcher.java
new file mode 100644
index 0000000..ed465f0
--- /dev/null
+++ b/src/main/java/com/gitblit/Launcher.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2011 gitblit.com.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.gitblit;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.security.ProtectionDomain;
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Launch helper class that adds all jars found in the local "lib" & "ext"
+ * folders and then calls the application main. Using this technique we do not
+ * have to specify a classpath and we can dynamically add jars to the
+ * distribution.
+ *
+ * @author James Moger
+ *
+ */
+public class Launcher {
+
+ public static final boolean DEBUG = false;
+
+ /**
+ * Parameters of the method to add an URL to the System classes.
+ */
+ private static final Class<?>[] PARAMETERS = new Class[] { URL.class };
+
+ public static void main(String[] args) {
+ if (DEBUG) {
+ System.out.println("jcp=" + System.getProperty("java.class.path"));
+ ProtectionDomain protectionDomain = Launcher.class.getProtectionDomain();
+ System.out.println("launcher="
+ + protectionDomain.getCodeSource().getLocation().toExternalForm());
+ }
+
+ // Load the JARs in the lib and ext folder
+ String[] folders = new String[] { "lib", "ext" };
+ List<File> jars = new ArrayList<File>();
+ for (String folder : folders) {
+ if (folder == null) {
+ continue;
+ }
+ File libFolder = new File(folder);
+ if (!libFolder.exists()) {
+ continue;
+ }
+ List<File> found = findJars(libFolder.getAbsoluteFile());
+ jars.addAll(found);
+ }
+ // sort the jars by name and then reverse the order so the newer version
+ // of the library gets loaded in the event that this is an upgrade
+ Collections.sort(jars);
+ Collections.reverse(jars);
+
+ if (jars.size() == 0) {
+ for (String folder : folders) {
+ File libFolder = new File(folder);
+ // this is a test of adding a comment
+ // more really interesting things
+ System.err.println("Failed to find any JARs in " + libFolder.getPath());
+ }
+ System.exit(-1);
+ } else {
+ for (File jar : jars) {
+ try {
+ jar.canRead();
+ addJarFile(jar);
+ } catch (Throwable t) {
+ t.printStackTrace();
+ }
+ }
+ }
+
+ // Start Server
+ GitBlitServer.main(args);
+ }
+
+ public static List<File> findJars(File folder) {
+ List<File> jars = new ArrayList<File>();
+ if (folder.exists()) {
+ File[] libs = folder.listFiles(new FileFilter() {
+ @Override
+ public boolean accept(File file) {
+ return !file.isDirectory() && file.getName().toLowerCase().endsWith(".jar");
+ }
+ });
+ if (libs != null && libs.length > 0) {
+ jars.addAll(Arrays.asList(libs));
+ if (DEBUG) {
+ for (File jar : jars) {
+ System.out.println("found " + jar);
+ }
+ }
+ }
+ }
+
+ return jars;
+ }
+
+ /**
+ * Adds a file to the classpath
+ *
+ * @param f
+ * the file to be added
+ * @throws IOException
+ */
+ public static void addJarFile(File f) throws IOException {
+ if (f.getName().indexOf("-sources") > -1 || f.getName().indexOf("-javadoc") > -1) {
+ // don't add source or javadoc jars to runtime classpath
+ return;
+ }
+ URL u = f.toURI().toURL();
+ if (DEBUG) {
+ System.out.println("load=" + u.toExternalForm());
+ }
+ URLClassLoader sysloader = (URLClassLoader) ClassLoader.getSystemClassLoader();
+ Class<?> sysclass = URLClassLoader.class;
+ try {
+ Method method = sysclass.getDeclaredMethod("addURL", PARAMETERS);
+ method.setAccessible(true);
+ method.invoke(sysloader, new Object[] { u });
+ } catch (Throwable t) {
+ throw new IOException(MessageFormat.format(
+ "Error, could not add {0} to system classloader", f.getPath()), t);
+ }
+ }
+}
--
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